import React from 'react'
import { useNavigate } from 'react-router-dom'

export default function Header() {
  const navigate = useNavigate()
  function back() {
    navigate(-1)
  }
  function forword() {
    navigate(1)
  }
  return (
    <div className="col-xs-offset-2 col-xs-8">
      <div className="page-header">
        <h2>React Router Demo</h2>
        <button onClick={back}>《=后退</button>
        <button onClick={forword}>前进=》</button>
      </div>
    </div>
  )
}
